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Using DRUM to Share and Preserve Data

The Digital Repository at the University of Maryland (DRUM) collects, preserves, and provides public access to the scholarly output of the university. Faculty and researchers can upload research products for rapid dissemination, global visibility and impact, and long-term preservation. Depositing data in DRUM can help you satisfy data management and sharing requirements from the NSF, NIH, and other funding agencies and journals. You can also deposit code, documents, images, supplemental material, and other research products.

You can track views and downloads of your research, and everything in DRUM is indexed by Google and Google Scholar. You receive a permanent DOI for your items, making it easy for other researchers to cite your work.

Please note that DRUM cannot accept confidential or sensitive materials (e.g. PII, endangered species, ITAR, etc.). De-identified or otherwise redacted materials are acceptable.

File sizes

You can upload multiple files with each submission, but for technical reasons the submission form will not accept individual files over 2GB. If you have individual files larger than 2GB, we will load them into DRUM for you. Email us to get started.

You can submit zipped, tarred, or other archive files.

Preparing data for submission

The submission process has two steps:

  1. Create a basic description of your work (author, title, date, abstract, etc. - example)
  2. Upload files

We can provide advice and assistance at any stage. If you would like to submit a complex research study with multiple data files and supporting documents, we can help you prepare your materials and organize your submission. Email us in advance.

Format and documentation recommendations for data

Submit comma-separated, tab-separated, or other delimited or fixed-width files for tabular or ‘ASCII’ data (e.g. txt, csv, tab, tsv). Excel, Access, and MATLAB files are acceptable, but avoid submitting data in specialized instrument formats.

See our file format recommendations for additional suggestions.

Data should be accompanied by a 'readme' file, data dictionary, codebook, or similar metadata document that contains, where applicable:

  • a file manifest describing file names and contents
  • state of the data (raw, cleaned, processed, subset, summary)
  • instruments and software used to create the data
  • processing steps
  • explanation of variables, column headers, value codes, flags, etc.
  • software required to view or use the data
  • licensing and any terms or conditions of use
  • funding source and grant number
  • contact information

Use this readme template to get started (adapted from Cornell University's RDM Service Group).

If you are submitting supplemental materials associated with an article, please include a citation to the article with your submission. There is a field in the submission form for this information.

You can find equivalent recommendations for code, images, video, and other materials on the DRUM website.

Boilerplate text for data management plans

1. For the section of your plan that addresses data access and sharing:

Research products from this project will be archived at the Digital Repository at the University of Maryland (DRUM) unless a more appropriate facility can be identified. DRUM is a long-term, open-access repository managed and maintained by the University of Maryland Libraries. Researchers and the general public can download data and code files, associated metadata and documentation, and any guidelines for re-use. All records in DRUM are assigned a persistent DOI to support consistent discovery and citation. The project description will be automatically indexed in Google and Google Scholar to support global discovery. Whenever possible, digital curation specialists in the University Libraries work with researchers to document and format materials for long-term access.

2. For the section of your plan that addresses long-term preservation:

The research products archived in DRUM will be available indefinitely. The University of Maryland Libraries’ DRUM repository is built on DSpace software, a widely used, reliable digital repository platform. DRUM performs nightly bit-level integrity tests on all files, and all contents are regularly copied to back-up storage. DRUM conforms to the digital preservation principles outlined in the University of Maryland Libraries’ Digital Preservation Policy.